<!DOCTYPE html>
<html lang="zh-CN">
<head>
    <meta charset="UTF-8">
    <title>05_多背景图</title>
    <style>
        div {
            width: 400px;
            height: 400px;
            padding: 60px;
            border: 1px solid black;
            background: url('../images/bg-lt.png') no-repeat left top,
                        url('../images/bg-rt.png') no-repeat right top,
                        url('../images/bg-lb.png') no-repeat left bottom,
                        url('../images/bg-rb.png') no-repeat right bottom;
        }
    </style>
</head>
<body>
    <div></div>
</body>
</html>